<template>
	<view>
		<u-swiper :list="slides" name="img_url" height="320"></u-swiper>
		<view class="u-text-center u-m-t-20">
			<u-tabs :list="sortList" bar-width="100" item-width="160" :current="currentSort" @change="changeSort"></u-tabs>
			<u-row gutter="16" class="u-skeleton">
						<u-col span="6" v-for="goods in goodsList">
							<view>
								<goods-card :goods="goods"></goods-card>
							</view>
						</u-col>	
					</u-row>
					<!-- //骨架屏 -->
					<u-skeleton :loading="loading" :animation="true" bgColor="#FFF"></u-skeleton>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				sortList: [{
						name: '默认'
					},
					{
						name: '销量'
					},
					{
						name: '推荐'
					},
					{
						name: '最新'
					}
				],
				currentSort:0,
				slides:[],
				goodsList:[{},{},{},{}],
				page:1,
				loading:false
			}
		},
		async onLoad() {
			this.getData();
		},
		methods: {
			changeSort(index) {
				this.currentSort=index;
				this.goodsList=[{},{},{},{}],
				this.page=1
				this.getData();
			},
			//获取数据
			async getData(){
				this.loading=true  //显示骨架
				const params={
					page:this.page
				}
				if(this.currentSort==1)params.sales=1
				if(this.currentSort==2)params.recommend=1
				if(this.currentSort==3)params.new=1
				const res=await this.$u.api.index(params)
				this.loading=false
				this.slides=res.slides
				this.goodsList=this.goodsList.pop().title ? [...this.goodsList,...res.goods.data]:res.goods.data
			}
		},
		onReachBottom(){//触底事件，重新请求数据，带上分页参数
			this.page=this.page+1;
			this.getData();
		}
	}
</script>

<style lang="scss" scoped>
	
</style>